On Mon, 10 Oct 2022 20:19:11 +0800, Hou Wenlong wrote:
> Commit c3134ce240eed ("KVM: Replace old tlb flush function with new one
> to flush a specified range.") replaces old tlb flush function with
> kvm_flush_remote_tlbs_with_address() to do tlb flushing. However, the
> gfn range of tlb flushing is wrong in some cases. E.g., when a spte is
> dropped, the start gfn of tlb flushing should be the gfn of spte not the
> base gfn of SP which contains the spte. Although, as Paolo said, Hyper-V
> may treat a 1-page flush the same if the address points to a huge page,
> and no fixes are reported so far. So it seems that it works well for
> Hyper-V. But it would be better to use the correct size for huge page.
> So this patchset would fix them and introduce some helper functions as
> David suggested to make the code clear.
>
> [...]
David and/or Hou, it's probably a good idea to double check my results, there
were a few minor conflicts and I doubt anything would fail if I messed up.
Applied to kvm-x86 mmu, thanks!
[1/6] KVM: x86/mmu: Move round_gfn_for_level() helper into mmu_internal.h
https://github.com/kvm-x86/linux/commit/bb05964f0a3c
[2/6] KVM: x86/mmu: Fix wrong gfn range of tlb flushing in kvm_set_pte_rmapp()
https://github.com/kvm-x86/linux/commit/564246ae7da2
[3/6] KVM: x86/mmu: Reduce gfn range of tlb flushing in tdp_mmu_map_handle_target_level()
https://github.com/kvm-x86/linux/commit/c6753e20e09d
[4/6] KVM: x86/mmu: Fix wrong start gfn of tlb flushing with range
https://github.com/kvm-x86/linux/commit/4fa7e22ed6ed
[5/6] KVM: x86/mmu: Fix wrong gfn range of tlb flushing in validate_direct_spte()
https://github.com/kvm-x86/linux/commit/976d07c25056
[6/6] KVM: x86/mmu: Cleanup range-based flushing for given page
https://github.com/kvm-x86/linux/commit/f9309825c4b1
--
https://github.com/kvm-x86/linux/tree/next
https://github.com/kvm-x86/linux/tree/fixes
